Draw-bar and yoke connection.



C. B. PATCH. o NNw BNR ANU YoKE CONNECTION. `APPLICATION FlLED DEC. 6.19N;-

Pand Deel s, 1918.

INVENToR. hm/BPM W I TNESSES:

zol

ED STATES PATENT oFFiCE. l.

CALVIN B. PATCH, oF GLENELLYN, ILLINoIs, Assieme 'ro WILLIAM H. mman, or

' CHAzY, NEW YORK.

DRAWBR .AND YOKE CONNECTION.

To all whom z' may concern.'

Be it known that I, CALVIN B. PAfrcH,a citizen of the United States,residing at Glenellyn, in the county of Dupage and State of Illinois,haye invented a certain new and -usefulv Improvement in Draw-Bar andYoke Connections, of which the following is a full, clear, concise, andexact description, reference being had to the accompanying drawings,forming a part of this specification.

is invention relates to improvements ih draw bar and yoke connections.One. object of the invention is to provide a simple andeiicientdetachable vdraw bar and' yoke connection wherein the draw barmay be removed without disturbing the yoke or parts contained therein.

Another object of the invention is to provide a detachable draw .bar andyoke connection so arranged thatvold yoke straps of the riveted type maybe employed with slight modification.

Inthe drawing forming a part of thisv specification, Figure 1 is a partlongitudinal section. part side elevation of a draw bar and yokeillustrating my improvements in connection therewith. Fig. .2 is atransverse, vertical sectional view taken substantially on the line 2-2of Fig. 1. And Fig. 3 is a horizontal sectional view taken substantiallyon'the line 3 3 of Fig. 2.

In said drawing. A designates a draw bar, B a yoke and C a hollow heador hood. The yoke B is of a well known form and comprises upper arm 10.lower arm 11 and rear connecting portion 12 with a filler 13 securedthereto. The yoke is shown as formed of flexible material and willusually be made of wrought iron thereby adapting thcl arms to be sprungtoward-and from each other; As shown, each of the arms,l and' 11 is"pro.vided at its forward or Yfree en'dwith an elongated slot 14 toaccommodate a correspondingly shaped lug 15 frmed on the inner faces ofthe. upper and ylower horizontal walls 16 and 17 of the head C. The"latter is of substantially rectangular form and in addition to'V the topand bottom walls 16 and 17 is provided with integral side walls'18-18`forwardly'extended and having key slots 19 theremto accommodatethe coupler' key; 20 nected to the draw bar A.

Specification of Letters Patent. Application filet.` December 6, 1916.Serial No.

by which the head is con- The yoke stra B'and head C are con# sembled,it is apparent that the draw bar .may be .inserted within the head andwhen 'in positlon will prevent accidental disengagement of the arms 10-and 11 from the lugs 15. v It is also apparent that the draw bar mayberemoved from the head by merelv taking out the key 20 and withoutdisturbing the yoke itself or any parts contained therein.

The slots 14 in the yoke arms and the lugs `15 are, ormay be so designedthat the ends of correspond to the usual stand-- provided in yokestrapsing portion of the strap found between said is manner, a materialsavr1vet holes. In th ing tothe railroads can be effected since itpermits the reemployment of the old riveted type of yoke straps while atthe same time providing a detachable draw bar and yoke connection,substantially the only additional expense to the railroads being for therectangular cast head.

I claim:

A. yoke for railway draft riggings comprising a hollow rectangular headand an independent separable U-shapedyoke strap;v

means for detachably connecting the head and strap. said meanscomprisinglongitudinally extending slots in the arms ofthe yoke, the location ofthe ends of said slots corresponding to the usual standardlv spacedPatented Dees, 1918.

nected together y springin the arms 10 and l1 toward each other ansnapping the same over the lugs 15-15. en thus asrivet holes, andcorrespondingly shaped integral lugs'on the inner faces of the upper andlower walls of the head. said lugs corresponding in depth to thethickness of the metal comprising the yoke strap, said head beingadaptedfor detachable connection to a draw bar bv means independent ofsaid means for detachably connecting the head and strap.

In witness that I claim theforegoing I;

have hereunto subscribed my name this 4th day of December, 1916. n

CALVIN B. PATCH.

